After the aliens had registered, a separate set of indexes were created from those registrations. Unfortunately there is no official explanation for these cards or why they were created, but guesses can be made based on some of their content. To view the original registrations see the Registrations Gallery.
Some of these cards also have a reference to a confidential file. To view information from these files see the Correspondence Gallery.
Note: All of these cards are duplicated. Only one card was scanned unless there was differing information, in which case both cards will be shown.